MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=cauchy+schwarz+inequality+problems+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including 'https://cdn.shopify.com/s/files/1/0428/1267/0111/files/gta_vice_city_crackeado.pdf'. The document body, though heavily obfuscated, contains references to these URLs, suggesting a social engineering attempt to drive traffic to malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.cc/pify?keyword=cauchy+schwarz+inequality+problems+pdf In PDF document text
- http://files.lawtonacademyrobotics.com/uploads/1/3/1/6/131637016/4885668.pdfIn PDF document text
- http://files.theelevatedtravel.com/uploads/1/3/1/0/131070231/6725238.pdfIn PDF document text
- http://files.southingtonrepublicans.net/uploads/1/3/1/0/131071258/5af5be4d5502295.pdfIn PDF document text
- http://misujo.prolyticsconsulting.com/uploads/1/3/0/7/130740510/ee30ef0eb57.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1267/0111/files/gta_vice_city_crackeado.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/0513/8328/files/10115694937.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0876/1764/files/chemical_engineering_design_towler_2nd_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9879/1329/files/kelemuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2371/9845/files/kixitojavojubitibug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4496/9367/files/anosmia_causas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7526/4924/files/fosibefapatomi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8226/1415/files/80334594169.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6564/7012/files/2807048998.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/5338/7674/files/tepodisumibekijupeno.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6470/4662/files/essential_college_physics_volume_1_solutions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4816/3735/files/dabekusexasotulumox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5680/6553/files/zevijaganafasotij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4840/1046/files/4016597793.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006ca5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CA5 | 5812 bytes |
SHA-256: 5b554fea2e2f9a19dcce84d0a2418814ff614744d763d463ee2e174c9a6fd8a3 |
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font_01_sfnt_off0000805a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x805A | 15768 bytes |
SHA-256: 489aece55f94516cb83db1ff70503ff154a5847949296baa549c45a89f033258 |
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